Pressure

• Pressure (N/m^2 or Pa)= force (N) / area (m^2)
• 1m^2= 10,000cm^2
• Increasing the depth increases the mass of water above, but the area stays the same
• Pressure in liquids increase with depth
• Pressure in liquids= hpg
• Air pressure is caused by gas particles exerting a force. At low elevations, there is a lot of weight of air above, so density increases.